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Oral drug Molnupiravir effective against COVID-19 in hamsters: study

The drug was effective when provided up to 12 hours before or 12 hours after infection with SARS-CoV-2

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An artist's impression of a plant-eating dinosaur whose remains scientists discovered in the Atacama Desert in Chile.

Scientists in Chile discover remains of plant-eating dinosaur

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The coffee species Coffea stenophylla, which bears black fruit rather than the red fruit typical of the two coffee species that are widely grown commercially, is seen in Ivory Coast in this undated photograph.

A rediscovered species brews promise for coffee's future

Reuters Stenophylla was found to have a complex flavour profile, with natural sweetness, medium-high acidity, fruitiness and good "body" — the way it feels in the mouth

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This photo provided by the Bureau of Land Management shows a dinosaur specimen that was discovered at the Grand Staircase-Escalante National Monument in Utah on Feb. 26, 2019.

Mass fossil site may prove tyrannosaurs lived in packs

AP In addition to the tyrannosaurs, researchers have also found seven species of turtles, multiple fish and ray species

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NASA's Mars helicopter makes history with successful flight on Red Planet

NASA's Mars helicopter makes history with successful flight on Red Planet

Reuters During NASA's own coverage of the event livestreamed from JPL headquarters, NASA also displayed the first images from the flight.

In this undated photo provided by John-Paul Hodnett are a row of teeth on the lower jaw of a 300-million-year-old shark species named this week following a nearly complete skeleton of the species in 2013 in New Mexico.

‘Godzilla’ shark discovered in New Mexico gets formal name

AP The formal naming announcement followed seven years of excavation, preservation and study

NASA hopes to make the Ingenuity Mars Helicopter rise five meters and then move laterally.

NASA aims for historic helicopter flight on Mars

AFP The space agency had originally planned the flight for April 11 but postponed it over a software issue.

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A researcher at Nanyang Technological University's attaching an electrode on the surface of a Venus flytrap plant at a laboratory in Singapore, as scientists develop a high-tech system for communicating with vegetation.

Watch | Scientists develop ‘robo-plants’ to interact with plants

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Oral drug Molnupiravir effective against COVID-19 in hamsters: study

Scientists in Chile discover remains of plant-eating dinosaur

Mass fossil site may prove tyrannosaurs lived in packs

A rediscovered species brews promise for coffee's future

NASA's Mars helicopter makes history with successful flight on Red Planet

On environment and ecology: The Hindu Science Quiz

‘Godzilla’ shark discovered in New Mexico gets formal name

The formal naming announcement followed seven years of excavation, preservation and study

Google Doodle celebrates birth anniversary of Russian doctor Vera Gedroits

She was known for her innovations in battlefield medicine

NASA aims for historic helicopter flight on Mars

The space agency had originally planned the flight for April 11 but postponed it over a software issue.

Only 3% of land areas unblemished by humans: study

Some scientists questioned the extremely low figure, saying it could be attributed to the study using a particularly narrow definition of “intact habitats”

Study shows T. rex numbered 2.5 billion

It was among the largest carnivorous dinosaurs, possessing a skull about 5 feet (1.5 meters) long, massive and muscular jaws with a bite force capable of crushing bone

ARIES facility will host the support centre for Aditya-L1

The centre will expand the visibility of Aditya-L1 in the international arena

Question Corner: How does temperature determine the sex in some specific reptile and fish embryos?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Can Covaxin booster dose prolong protection?

The booster dose will be given six months after the second dose, the company is to follow up the participants for at least six months

Can Covaxin booster dose prolong protection?

The booster dose will be given six months after the second dose, the company is to follow up the participants for at least six months

J&J scientists refute ‘class effect’ to blame for clots in those who got its vaccine

They say the two vaccines are ‘substantially different’ and have different effects

The story of 220-million-year-old rat-like creatures via microfossils

The teeth were studied and compared with previously reported cynodonts

India-France sign agreement for cooperation on Gaganyaan mission

ISRO has asked CNES to help prepare for Gaganyaan missions.

COVID-19 patients with sedentary habits more likely to die, finds study

As a risk factor for serious COVID-19 disease, physical inactivity was surpassed only by advanced age and a history of organ transplant.

Monsoon was stronger 7,000 years ago: study

Due to variations in solar radiation, it started weakening 4,200 to 2,000 years ago, say researchers

NASA delays Mars helicopter flight for tech check

NASA noted the copter is "safe and healthy" and had sent information back to Earth

How do astronauts write in space?

The pencil wasn’t an ideal choice for writing in space because its tip could flake and break off, drifting in microgravity with the potential to harm an astronaut or an equipment

Question Corner: How did ancient marine creatures breathe?

Readers may send their questions/answers to questioncorner@thehindu.co.in

Indus and Ganges river dolphins are two different species

The researchers studied ancient DNA that they got out of skulls and skeletons which were 20 to 30 to even 150 years old

Beast of five teeth: Chilean scientists unearth skunk that walked among dinosaurs

The animal is thought to have lived between 72 and 74 million years ago during the Upper Cretaceous period

U.S.-Russian trio blast off on mission to space station

A Russian-U.S. trio of space travelers launched successfully Friday, heading for the International Space Station.NASA astronaut Mark Vande Hei and

Third of Antarctic ice shelf area at collapse risk due to global warming: Study

They noted that when melted ice accumulates on the surface of ice shelves, it can make them fracture and collapse spectacularly.

All about bats: The Hindu Science Quiz

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

Another hint of ‘new physics’, this time from Fermilab

Fermilab, which houses the American particle accelerator, has released the first results from its ‘muon g-2’ experiment

Watch | Scientists develop ‘robo-plants’ to interact with plants

A video on 'robo-plants', a high-tech system for communicating with vegetation.

Bulgarian cave remains reveal surprises about earliest Homo sapiens in Europe

The new study suggests interbreeding was more common than previously known for the first Homo sapiens in Europe.

Know the scientist: Tu Youyou

In 2015, Tu became the first Chinese Nobel laureate in physiology or medicine

Rechargeable batteries for electric vehicles get IIT-Guwahati boost

The research team said the advanced technique developed can precisely estimate the state of charge, one of the most important internal aspects of a battery

Best from science journals: A new state of light

Here are some of the most interesting research papers to have appeared in top science journals last week.

Climate change shrinks marine life richness near equator: study

Having fleets of fish and other swimmers shift rapidly to more temperate waters could devastate the coral ecosystems they leave behind.

Prioritising who gets vaccinated against COVID-19 can save lives: study

The team identified that front-line essential workers should be a vaccination priority along with or shortly after seniors.

Brain waves measured using ear implants for the first time

Researchers expect this finding to help manufacturers further develop smart hearing aids

NASA's Ingenuity helicopter dropped on Mars' surface ahead of flight

It is expected to make its first flight attempt no earlier than April 11, the Jet Propulsion Laboratory tweeted

Coronavirus | COVID-19 patients can be categorised into three groups, say scientists

Phenotypes I and II were associated with 7.30-fold and 2.57-fold increases in hazard of death relative to phenotype III.

IIT Kanpur develops touch-sensitive watch for the visually impaired

Two researchers from IIT Kanpur have developed a touch-sensitive, tactile, haptic watch that can help visually impaired people learn what time it is

Researchers foresee trends in diphtheria incidence

Study maps tox genes, progression of antimicrobial resistance in pathogen

Coronavirus | What is driving the second wave in India?

Variants, imported and homegrown, are increasingly seen but have so far not been linked epidemiologically to the surge

How Asian desert dust enhances Indian summer monsoon

Dust swarms can influence moisture transport, increase precipitation, rainfall

‘India will add four million more cases by May 1’, says Public Health Foundation of India epidemiologist

When the surge in cases is rapid, more persons with severe disease might require critical care at the same time, resulting in a shortage of beds

All about the Large Hadron Collider: The Hindu Science Quiz

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

Temperature differences in the respiratory tract influence SARS-CoV-2 replication: study

When the researchers created colder conditions, they found that the virus replicated faster than when infections were carried out at 37 degrees Celsius to mimic the lower lung environment.

Coronavirus | ICMR study provides a new definition for SARS-CoV-2 re-infection

An epidemiological working definition will be more pragmatic and helpful to assess the magnitude of re-infection in most population and resource constrained settings.

Invasive species cause billions in damages each year: study

Early detection, better data and preventative measures could reduce costs considerably

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